4444225 has 12 divisors (see below), whose sum is σ = 5835564. Its totient is φ = 3345920.

The previous prime is 4444217. The next prime is 4444229. The reversal of 4444225 is 5224444.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 254016 + 4190209 = 504^2 + 2047^2 .

It is not a de Polignac number, because 4444225 - 2³ = 4444217 is a prime.

It is a super-3 number, since 3×4444225³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

4444225 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4444225.

It is not an unprimeable number, because it can be changed into a prime (4444229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4804 + ... + 5653.

It is an arithmetic number, because the mean of its divisors is an integer number (486297).

Almost surely, 2^4444225 is an apocalyptic number.

It is an amenable number.

4444225 is a deficient number, since it is larger than the sum of its proper divisors (1391339).

4444225 is a wasteful number, since it uses less digits than its factorization.

4444225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10484 (or 10479 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The square root of 4444225 is about 2108.1330603166. The cubic root of 4444225 is about 164.4114322615.

Adding to 4444225 its reverse (5224444), we get a palindrome (9668669).

The spelling of 4444225 in words is "four million, four hundred forty-four thousand, two hundred twenty-five".